The Mariners have had three players make their MLB debuts in the past month and a half. Most recently, 31-year-old Ryan Court has hit the ball real hard or whiffed in his first eight PAs and not much in between. 25-year-old Tim Lopes had a fairly heart-breaking debut, first sneaking in as a defensive replacement, then going 0-for-1 with a walk, a stolen base, and, ultimately, a scary HBP to the jaw that landed him in concussion protocol. That leaves 29-year-old Austin Nola as the longest-tenured and most successful rookie on the Mariners active roster.